{"paper":{"title":"Unidirectional Ray Polaritons in Twisted Asymmetric Stacks","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"physics.optics","authors_text":"A. I. F. Tresguerres-Mata, A. Paarmann, A. S. Senerath, A. Tarazaga Mart\\'in-Luengo, A.Y. Nikitin, C. Lanza, E. Ter\\'an-Garc\\'ia, G. \\'Alvarez-P\\'erez, G. Carini, J. \\'Alvarez-Cuervo, J.D. Caldwell, J. Mart\\'in-S\\'anchez, J.M. De Teresa, J. M. Klopf, K. Diaz-Granados, L. \\'Alvarez-Tomillo, L. Herrer, L.M. Eng, M. Obst, M. Wolf, N. S. Mueller, P. Alonso-Gonz\\'alez, R. Kowalski, S.C. Kehr, S. Dixit, S. Wasserroth, T. Beechem, T.G. Folland","submitted_at":"2024-03-27T15:03:21Z","abstract_excerpt":"The vast repository of van der Waals (vdW) materials supporting polaritons offers numerous possibilities to tailor electromagnetic waves at the nanoscale. The development of twistoptics - the modulation of the optical properties by twisting stacks of vdW materials - enables directional propagation of phonon polaritons (PhPs) along a single spatial direction, known as canalization. Here we demonstrate a complementary type of directional propagation of polaritons by reporting the visualization of unidirectional ray polaritons (URPs). They arise naturally in twisted hyperbolic stacks with very di"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.18657","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2403.18657/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}